In Assassin's Creed IV, I find Man-o-War's kind of useful as they have a lot of Loot on them. But the problem is I can't defeat them, because they are too strong and have a LOT of health. I even found a Man-o-War docked next to this island with Templars on it, but when you enter it's restricted zone someone starts shooting at you so it's impossible to get on the ship.
IS THERE ANY WAY HOW TO BOARD / DEFEAT A MAN'O'WAR ??
( My Jackdaw has three bars of health and I'm low on metal and iron, which I can't anywhere at all)